Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy   Age range and collections

Tyrolecrinus

Crinoidea - Cladida - Isocrinidae

Taxonomy
Tyrolecrinus is a genus. It is not extant.

It was assigned to Isocrinida by Sepkoski (2002); and to Isocrininae by Stiller (2011).

Synonymy list
YearName and author
2002Tyrolecrinus Sepkoski, Jr.
2011Tyrolecrinus Stiller p. 1418

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
classCrinoideaMiller 1821
subclassPentacrinoideaJaekel 1918
infraclassInadunata(Wachsmuth and Springer 1897)
RankNameAuthor
orderCladida(Moore and Laudon 1943)
suborderEucladida
infraorderArticulata(Zittel 1879)
orderIsocrinidaSieverts-Doreck 1952
suborderIsocrininaGilsén
familyIsocrinidaeGislén 1924
subfamilyIsocrininaeGislen 1924
genusTyrolecrinus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
F. Stiller 2011Stem of small diameter, pentalobate (subcircular to subpentagonal to pentalobate to subpentastellate), consisting of smooth columnals. Nodals about equal in size to internodals and bearing, generally at mid-height, five small to moderately sized, strongly deepened and laterally outwardly to obliquely downwardly directed cirrus sockets.
Noditaxes with generally less than 10 columnals. Articulations
between nodals and infranodals cryptosymplectial to synostosial. All other articular facets of columnals symplectial with drop- to lancet-like petal floors surrounded by distinct crenulae oriented radially to peripherally. (Based on Klikushin 1982, 1983, emended herein.)